The world’s population now exceeds 7.7 billion people. Our population is still growing by more than 80 million people every year and is likely to keep growing until the end of the century, unless we take action.

It took the human population until 1800 to reach 1 billion people – we now add a billion more every 12 to 15 years. Since 1970, our numbers have more than doubled.

Learn more about our numbers here.

See our latest news stories and blog posts about world population below.

Optimum Population Trust Journal October 2005 Vol. 5, No 2

Download

Optimum Population Trust Journal April 2005 Vol. 5, No 1

Download

Optimum Population Trust Journal October 2004 Vol. 4, No 2

Download

Optimum Population Trust Journal April 2004 Vol. 4, No 1

Download

Optimum Population Trust Journal October 2003 Vol. 3, No 2

Download

Optimum Population Trust Journal April 2003 Vol. 3, No 1

Download

Optimum Population Trust Journal October 2002 Vol. 2, No 2

Download

Optimum Population Trust Journal April 2002 Vol. 2, No1

Download